Indicating chart and means for viewing the same



Sept. 11, 1928. 1,684,212 C. BERGER INDICATING CHART AND MEANS FOR VIEWING THE SAME Filed April 28 1921 3 Sheets-Sheet 1 dvwentoz Sept. 11, 1928. 1,684,212

, v C. BERGER INDICATING CHART AND MEANS FOR VIEWING THE SAME Filed April 28. 2 3 Sheets-Sheet 2 Sept. 11, 1928.

C. BERGER INDICA'IING CHART AND MEANS FOR VIEWING THE SAME Filed April 28. 1921 3 Sheets-Sheet 3 awwamtoz him I 02; 6:07:14

-' that a greater weight secured.

Patented Sept. l1, 1928 UNITED STATES CHRISTIAN BEBGEB, OF BROOKLYN. NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS,

DAYTON SCALE COMPANY, 01" DAYTON,

- nmrca'rme cma'r AND ME PATENT OFFICE.

01110, A COBPORATIONOF'NEW JERSEY.

ANS FOR VIEWING THE Application filed April 28, 1921. Serial Ho. 465,177.

The present invention relates to improvements in weighing scales and more particularly to improvements in the indicator of the scale to the end that more comprehensible and extensive readings of'weight and other factors based upon weight may be Other objects of the invention reside in the provision of means for. increasing t e indicating capacity of the scale to the end number of readings, or more readings, may be taken actuated indicator. Other objects of the inven ion reside in legible the provision'of improvements in the drum indicator type of weighing scale having a r so-called price chart.

features of the invention While certain have particular utihty' in connection w th les, the invent on the drum type of price sea in its broad aspects-is not limited to this type of scale and it will be understood that the scale illustrated and described constitutes only a preferred formof embodiment of the invention. 4

In the weigh common practice to indicate weight and correlated items such as prices upon a chart which is mounted upon a drum and displaced in accordance with weight. These charts'have commonly been arranged w th l a separate column of figures for each price displacement due per pound and with usually a single and reverse column of figures for weight Increase in number of prices has amounts.

adding additional columns been secured by of figures. 0

While it would seem comparatively simple to increase the capacity of these charts by merely increasing their size, this has been found impractical in practice since larger charts necessitate larger drums and this in,-

as to cause errors in drum to the frict on and inertia of the drum.

.Since the chart size has been limited by the operation characteristics of the scale, it has been the practice to condense the size of the figures and usemagnifying glasses for reading. However, even with the smallest of "figures'a limit of capacity. fordifierent.

from the ing scale art it has been a moved by the scale prices is finally'reached and when additional prices are required it is necessary to have a second scale with a difi'erently arranged @chart. i

In my prior Patent No. 1,295,842 I have shown a computing scale of thedrum type havin superimposed sets of fi ures printed in difierent colors. One or .t e other set of figures may be read by viewing the same with lights of different colors either by means of vari-colored lights or by means of vari-colored filters. The-present invention utilizes the broad principle which is dis closed in the said patent. lVith the present invention I utilize a chart which is printed in a particular way to permit the concurrent reading by the operator of double sets of weight and correlated amount numerals. To secure this result certain of the sets'of numerals and correlated amounts are printed in one color and on other sets are printed ,ina different color. The set of numerals of one color are offset relatively to the coordinate set printed in a different color.

By the use of a suitable pair of color filters preferably juxtaposed one over the other it is possible for the operator to read either or both sets of characters without the manipulation of any devices whatsoever, and without changing his position.

The foregoing arrangement of indicating chart and reading appliance permits the number of correlatted amount characters to be largely increased. Furthermore, of the characters may be maintained and even increased if the number of different correlated amounts are less than twice the number heretofore placed upon a chart. I may also entirely eliminate the use of lenses for reading, should the characters be of sufficient size for direct reading.

'In thcfdrawingsz" Fig. 1 shows a side elevation of a scale with certain portions the interior construction.

Fig. 2 is a front elevation of a part of the drum housing.

weight-indicating section of the chart.

color filter devices arranged in Fig. 3 is a. fragmentary view of the the size broken away to show I front of parts thereof to change the visibility of the readings.

Fig. 5 is an enlarged detail sectional View of the chart, the filters and illuminating devices.

Figs. 6 and 7 show modified methods of illuminating the chart.

Fig. 8 shows a similar arrangement with plain glass filters instead of lens filters.

The scale to which my invention is here shown as applied is of a type well known in the art. It comprises a platform 10, a main lever 11 suitably fulcrumed and pivotally supporting the platform, and having the usual nose iron connecting to a steelyard 12. The steelyard, through the usual cross connections, is connected to racks 13 which mesh with pinions 14 uponthe drum shaft. The applied load is automatically counterbalanced by suitable springs 16. The drum shaft carries light weight spiders which in turn support a chart 1? commonly called a drum chart. The chart is encased in a suitable housing 18. The scale also includes the usual compensating "thermostats, a check and a dash pot but as these features are well known in the art, they require no detailed description.

The chart comprises a set of numerals 19 printed in green which designate the weight of the goods. Superimposed upon this set of numerals are complementary sets of numerals 19 printed in red. Numerals l9 and-19' deslgnate the weight of the goods and are disposed adjacent the usual graduation lines which may be printed in black or by superimposed red and green lines. Nu-

merals 19 and 19 are arranged in concurrently ascending arithmetical progressions and the numerals of one set have their zero point offset a certain distance from the zero point of the other set.

Disposed to one side of the weight numerals are other sets of green and red numerals 20 and 20 with correspondingly colored graduation lines. 520 and 20 are correlated to the weight numerals and here rep resent prices of the commodity weighed. These sets of numerals are likewise arranged in concurrently ascending arithmetical progressions and have their zero points offset a like distance. Disposed in 'front of the chart are two juxtaposed color filters which may either be in the form of magnifying lenses 21 and 21 or plain glass filters 22" and 22 as shown in Fig. 8. These filters are colored in accordance with the sufiix designation. Viewing the chart through 21 numerals 19' and 20 will be visible as black numerals and 19 and 20 will be invisible (see Fig. 4).

Similarly upon looking at the chart through the red filter 21*, numerals 19' and 20 will be invisible and 19 and 20 visible in black. It will be understood that there are a plurality of sets of numerals 20 and a plurality of sets of numerals 20. The superimposed groups of a pair of sets are based upon different prices per pound and to provide a simple means for correlating the price per pound with the set and column which corresponds, I provide price scales 23 and 23. These scales are placed alongside the filters as shown and direct the operators vision to the proper corresponding column of prices which appears through the color filters. Fig. 4 shows that it is possible to not only superimpose numbers for different prices but that the lateral register of columns may be varied. It is therefore possible to both increase the number of prices which can be shown upon a chart and to change the scale to which the numbers and graduated scales are drawn to thereby improve the reading of the displayed result.

Filters 21 and 21 are both provided with suitable reading lines which may be inscribedfupon the filters themselves or may be in the form of reading wires 24 and 24", asshown in Fig. 5. The two reading lines are spaced the same distance apart as the ofiset distances of the zeros of the sets of numerals.

As shown in Fig. 4, it is therefore possible forthe operator to concurrently read sets 19 and 19 which are identical and sets 20 and 20 which differ from each other in aztual value but which are correlated to the weight values of correspondin sets 19' and 19. This readingmay be tafien with out the shifting or manipulation of any color filter screens and in effect gives a double concurrent reading from a sin le chart which is displaced according to weig t.

In Fig. 51 have shown one means of illuminating the chart by electric light. Here a housing 25 is provided which supports the filters, price scales, etc., and also supports a light 26. This light extends laterally across the chart and has its filament so located and the housing so roportioned that direct light rays may fa upon the chart and illuminate the area shown between the brackets.

Fig. 6 shows a slightly modified arrangement in which the light is directed by reflection from a mirror 27 onto the chart. The illuminated area is shown by the brackets and the paths of the light from the filament by the dotted lines.

Fig. 7 shows an arrangement which uses a supplemental mirror 28 to receive light from a source entirely without the housing and direct the same upon the reflecting mirror 27.

Fig. 8 isan arrangement similar to Fig. 1 with plain filters instead of magnifying ters.

While the use of ai-tificial light improves the display of the indication, the same is ing arithmetical of. numbers as not essential and maybe dispensed with. If used I preferably provide the usual form of scale operated switch to cut the light into circuit when a load is a plied to the scale. Such switches being wel own in the art,

[require no detailed description.

While I have here shown the related sets rice numerals, they may designate other ltems For example, the scale could be provided with one set of numbers graduated in ounces and pounds and a supplementary set could be used based upon the metric sys tem of weights.

What I claim is 1. In a weighing scale, a chart and means for displacing the same in accordance with an applied load, a urality of difierently colored sets of num ers thereon, said sets being each arranged in concurrently ascendrogressions Wlth' their zero points eifset a certain "amount, a

air of color filters on the same side of said chart each filter renderin visible one set of numbers and rendering t e other set invisible, and reading lines associated with each said filter spaced apart by the distance of the zero oflsets whereby correlated numbers based upon the same weight may .be concurrently readby the operator.

2, The invention set forth in claim 1- in which the color filters are both fixed against movement.

3. The invention set forth in claim 1 in, i which the color filters are (i'uxtaposed one above the other and are fixe against movement.

4. The invention set forth in claim 1 in which certain of the sets ofnumbers represent prices and other sets represent the weight of the goods.

5. The invention set forth in claim 1 in which a pair of indicating scales are provided one for each filter, to indicate the value, r unit of weight corresponding to the difidrent sets of numbers.

6. A device as set forth in claim 1 in which means is provided for illuminating the numerals arranged in chart. a

7. A chart comprising a double set of numerals, one set bein printed in one color ding arithmetical pro- 'on, and a second set .of numerals superimposed uponthe. first set and printed in a diflerent color, said second set comprising an arithmetical progression ascending concurrently with the 1 first set and having the zero point offset from the first by an amount equal tosubstantially one unit ofthe scale of-the first progression.

8.' 'In a device comprising a chart adapted to'permit the concurrent observation by a single observer of a double set of numerals superimposed thereon, in combination 'with based upon weight.

a chart, a plurality of differently colored sets of numerals thereon, said sets being arranged in concurrentl ascending arithmetical progressions wit offset by a particular amount, a pair of reading line means on the same side of said chart, said lines being spaced a distance of the zero offsets, an means for viewing one portion of the chart with light of one color at one readin viewing another portion of t e chart at the other reading line with a light of a different color whereby a double reading of correlated amounts may be taken.

9. A computing scale comprising in combination, a cylindrical chart and means for automatically displacing the ,same in actheir zero points art by the 7 line and for numbers thereon of a color different from g the first mentioned color, said second mentioned plurality of sets of numbers overlapping the said first mentioned plurality of sets of numbers and the zero points of the sets of numbers of said first mentioned plurality of sets being displaced from the zero points of the sets of numbers of said second mentioned plurality of sets by a distance less than one-fourth of the circumferential length of said chart a color filter adjacent the normal zero position of the sets of numbers of one color for rendering the numbers of that color predominantly visible, and a color filter ad acent the normal zero position of the sets of numbers of the other color for rendering the numbers of that color predominantly visible.

10. A chart forvcomputing scales having a pluralit of sets of progressive indications of one co or thereon, and a plurality of sets of progressive numbers thereon of a color different from the first mentioned color, said second mentioned plurality of sets of numbers overla ping the said first mentioned plurality 0 sets of numbers, and the zero oints of the sets of numbers of one color eing displaced from the zero points of the sets of numbers of the other color by* a distance less than one-fourth of the length of the field of the chart measured in the dlrection of progression of said numbers.

11. A computing scale comprising in combination, a chart andmeans for automatically displacing the same in accordance with the applied load, said chart having a plurality of groups of price indications adapted to be viewed upon the same side of the scale, each group including sets of progressive numbers representing products of weight and prices per unit weight of commodities, the numbers of each group bein depicted in a color' different from the co or of the numbers of another group, at leastsome' of 5 per unit weight of other groups,

groups, and fixed means for rendering sets of each group predominantly visible with respect to other sets.

In testimony signature.

whereof I hereto aflix my CHRISTIAN BERGER. 

